Some users report better success with the SR9900 driver using this method:
A: No. Realtek and ASIX are separate manufacturers. CoreChip drivers are not interchangeable . Using a Realtek driver on a CoreChip adapter will cause failure.
To use a CoreChip Semiconductor USB to Ethernet adapter on a Windows 11 device, you need to install the correct driver. The driver enables the adapter to communicate with the operating system and provides the necessary functionality for a stable internet connection. The CoreChip Semiconductor USB to Ethernet driver for Windows 11 is available on the company's website and can be downloaded and installed easily. corechip semiconductor usb to ethernet driver windows 11 top
When you plug the device into Windows 11, one of three things typically happens:
In Device Manager, right-click the adapter -> Properties -> Power Management tab -> Uncheck "Allow the computer to turn off this device to save power." Some users report better success with the SR9900
The official CoreChips Shenzhen Download Page hosts specific Windows 11 drivers for the SR9900(A)(AI) series.
This is usually a physical cable or port issue. Check that you are using a Cat5e or better Ethernet cable. Also, ensure you have plugged the USB adapter into a USB 2.0 or USB 3.0 port. USB 1.1 ports (rare on modern PCs) cap speeds significantly. Finally, go into the adapter's properties in Device Manager and manually set "Speed & Duplex" to "100 Mbps Full Duplex" under the Advanced tab. Using a Realtek driver on a CoreChip adapter
: Point Windows to the folder where you extracted the driver files and click Next to complete the installation. Corechip SR9900 USB2.0 to Fast Ethernet Adapter - Treexy